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Hastelloy C276 B575 Plates

Material Grade: Hastelloy C276 (UNS N10276)

Standard Specification: ASTM B575 / ASME SB575

Alloy System: Ni-Mo-Cr with Tungsten Addition

Corrosion Performance: Superior in Ferric & Cupric Chlorides

Process Edge: Resistant to Wet Chlorine Gas & Hypochlorite

Fabrication Advantage: Low Carbon for Post-Weld Stability

Thickness Range: 0.5 mm to 50 mm

Primary Industries: Chemical Processing, Pulp & Paper, Waste Treatment

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Hastelloy C276 (UNS N10276) Plates, strictly conforming to the ASTM B575 technical standard, are globally regarded as the gold standard for corrosion resistance in the chemical processing industry. This nickel-molybdenum-chromium superalloy is uniquely fortified with tungsten, creating a metallurgical profile that is exceptionally resistant to a vast array of severe environments. Whether facing strong oxidizers like ferric and cupric chlorides or aggressive reducing media, Hastelloy C276 maintains its structural integrity where most other alloys fail. Its low carbon content is a critical feature, as it minimizes grain-boundary carbide precipitation during welding, ensuring the heat-affected zones remain as corrosion-resistant as the base metal itself.

The versatility of ASTM B575 Hastelloy C276 makes it the premier choice for the most challenging "problem areas" in industrial plants. It is one of the few materials capable of withstanding the corrosive effects of wet chlorine gas, hypochlorite, and chlorine dioxide. This makes it indispensable for flue gas desulfurization (FGD) systems, pharmaceutical reactors, and waste treatment components. Furthermore, its outstanding resistance to pitting and stress-corrosion cracking ensures long-term reliability in heat exchangers, evaporators, and reaction vessels handling sour gas or high-chloride process streams. By providing an uncompromising shield against localized attack, Hastelloy C276 plates ensure safety and longevity in the world's most aggressive chemical environments.

Hastelloy C276 B575 Plates Features

» Universal Corrosion Resistance: Provides exceptional protection against a vast range of chemical process environments, including strong oxidizers, hot contaminated media, and organic/inorganic acids.
» Localized Attack Immunity: Specifically engineered to resist pitting and crevice corrosion in high-chloride environments, outperforming most high-nickel and stainless steel alloys.
» Low Carbon Content Advantage: The low carbon specification minimizes carbide precipitation during welding, maintaining superior corrosion resistance in the heat-affected zones (HAZ) without post-weld heat treatment.
» Wet Chlorine Gas Resistance: One of the few alloys capable of resisting the highly corrosive effects of wet chlorine gas, hypochlorite, and chlorine dioxide.
» Stress-Corrosion Cracking (SCC) Immunity: Virtually immune to chloride-induced stress corrosion cracking, ensuring the structural safety of pressure vessels and heat exchangers.
» High-Temperature Stability: Maintains excellent oxidation resistance and mechanical properties at elevated temperatures, suitable for aggressive thermal processing.
» Tungsten-Fortified Chemistry: The addition of tungsten further enhances the alloy’s resistance to pitting in severe reducing environments and acidic chloride solutions.
» Versatile Fabrication: Highly ductile and weldable using all standard industrial methods (GTAW, GMAW, SMAW), allowing for the construction of intricate chemical reactor internal components.

Hastelloy C276 B575 Plates Specification

Standards

ASTM Standard: B575
ASME Standard: SB575
UNS Number: N10276
WNR Number: 2.4819

Chemistry

Nickel (Ni): Remainder
Molybdenum (Mo): 15.0% – 17.0%
Chromium (Cr): 14.5% – 16.5%
Tungsten (W): 3.0% – 4.5%

Mechanical Data

Yield Strength: 283 MPa (Min)
Tensile Strength: 690 MPa (Min)
Elongation: 40% (Min)
Hardness: 100 HRB (Max)

Physical Info

Density: 8.89 g/cm³
Melting Range: 1325 - 1370°C
Thermal Cond: 10.2 W/m·K
Electrical Res: 1.30 μΩ·m

Size Range

Thickness: 0.5 mm to 50 mm
Width: Up to 2500 mm
Length: Up to 6000 mm
Edge Condition: Mill / Slit / Plasma Cut

Quality Control

MTC: EN 10204 3.1 / 3.2
Testing: Pitting Resistance / PMI
Certification: NACE MR0175 / MR0103
Inspection: TPI (Third Party) Available

Hastelloy C276 B575 Plates Detailed Specifications

Property	Specification
Specification	ASTM B575 / ASME SB575
Width	1000mm - 2500mm
Thickness	0.5mm - 50mm
Length	2000mm - 6000mm
Supply Condition	Hot-Rolled, Cold-Rolled, Annealed, and as per customer requirements.
Impact Tested	-196°C
Process of Manufacturing	Hot-Rolled, Cold-Rolled, Annealing, Pickling, and Passivation

Hastelloy C276 B575 Plates Chemical Composition

Element	Composition %
Nickel (Ni)	Balance
Molybdenum (Mo)	15.0 - 17.0
Chromium (Cr)	14.5 - 16.5
Iron (Fe)	4.0 - 7.0
Cobalt (Co)	2.5 max
Manganese (Mn)	1.0 max
Silicon (Si)	0.08 max
Carbon (C)	0.01 max
Phosphorus (P)	0.04 max
Sulfur (S)	0.03 max
Vanadium (V)	0.35 max

Hastelloy C276 B575 Plates Mechanical Properties

Property	Value
Tensile Strength	100,000 psi (690 MPa) min
Yield Strength	45,000 psi (310 MPa) min
Elongation	40% (in 2 inches / 50 mm)
Hardness	Rockwell B: ≤ 100
Modulus of Elasticity	205 GPa

Hastelloy C276 B575 Plates Equivalent Grades

Standard	ASTM B575	ASME SB575	EN	UNS	Werkstoff Nr.	ISO
Equivalent Grade	Hastelloy C276	Hastelloy C276	NiMo16Cr15W	N10276	2.4819	NiMo16Cr15W

Industrial Locations & Keywords

Industrial Locations & Keywords
Riyadh Industrial Cities (1st, 2nd, 3rd & Sudair)
Jeddah Industrial Cities (1st, 2nd & 3rd)
Dammam Industrial Areas (1st, 2nd & 3rd)
Jubail Industrial City
Yanbu Industrial City
Rabigh Industrial City
Al Khobar Industrial Area
Al Ahsa Industrial City
Madinah Industrial City
Makkah Industrial City
Taif Industrial City
Tabuk Industrial City
Jazan Industrial City
Industrial supplier in Saudi Arabia
Pipe fittings supplier in Jubail / Dammam / Riyadh
Flange and valve supplier Saudi Arabia
Fast delivery industrial materials KSA